Scouring the planet for breeding solutions

Bindiganavile Vivek

Bindiganavile Vivek (pictured) is a maize breeder working at the International Maize and Wheat Improvement Center (CIMMYT), based in Hyderabad, India. For the past five years, Vivek and his team have been developing drought-tolerant germplasm for Asia using relatively new molecular-breeding approaches – marker-assisted recurrent selection (MARS), applied in a genomewide selection (GWS) mode. Their work in the Asian Maize Drought-Tolerance (AMDROUT) project is implemented through GCP’s Maize Research Initiative, with Vivek as the AMDROUT Principal Investigator.

Driven by consumer demand for drought-tolerant maize varieties in Asia, the AMDROUT research team has focussed on finding suitable drought-tolerant donors from Africa and Mexico. Most of these donors are white-seeded, yet in Asia, market and consumer preferences predominantly favour yellow-seeded maize. Moreover, maize varieties are very site-specific and this poses yet another challenge. Clearly, breeding is needed for any new target environments, all the while also with an eye on pronounced market and consumer preferences.

(1) Amazing maize and its maze of colour. Maize comes in many colours and hues. (2) Steeped in saffron: from this marvellous maize mix and mosaic, the flavour in Asia favours yellow maize.

Stalked by drought, tough to catch, but still the next big thing

Around 80 per cent of the 19 million hectares of maize in South and Southeast Asia is grown under rainfed conditions, and is therefore susceptible to drought, when rains fail. Tackling drought can therefore provide excellent returns to rainfed maize research and development investments. As we shall see later, Vivek and his team have already made significant progress in developing drought-tolerant maize.

The stark reality of drought is illustrated in this warning sign on a desiccated drought-scorched landscape, showing the severity of drought in Asia

But they are after a tough target: drought tolerance is dodgy since it is a highly polygenic trait, making it difficult for plant scientists to pinpoint genes for the trait (see this video with an example from rice in Africa). In other words, to make a plant drought-tolerant, many genes have to be incorporated into a new variety. As one would expect, the degree of difficulty is directly proportional to the number of genes involved. In the private-sector seed industry, MARS (PDF) has been successfully used in achieving rapid progress towards high grain yield under optimal growth conditions. Therefore, a similar approach could be used to speed up the process of introducing drought tolerance into Asian crops – the reason why the technique is now being used by this project.

More than India: the AMDROUT project also comprises research teams in China, Indonesia, Thailand, The Philippines and Vietnam. In this photo taken during the December 2010 annual project meeting in Penang, Malaysia, the AMDROUT team assessed the progress made by each country team, and team members were trained in data management and drought phenotyping. They also realised that there was a need for more training in genomic selection, and did something about it, as we shall see in the next photo. Pictured here, left to right: Luo Liming, Tan jing Li, Villamor Ladia, V Vengadessan, Muhammad Adnan, Le Quy Kha, Pichet Grudloyma, Vivek, IS Singh, Dan Jeffers (back), Eureka Ocampo (front), Amara Traisiri and Van Vuong.

The rise of maize: clear chicken-and-egg sequence…

Vivek says that the area used for growing maize in India has expanded rapidly in recent years. In some areas, maize is in fact displacing sorghum and rice. And the maize juggernaut rolls beyond India to South and Southeast Asia. In Vietnam, for example, the government is actively promoting the expansion of maize acreage, again displacing rice. Other countries involved in the push for maize include China, Indonesia and The Philippines.

So what’s driving this shift in cropping to modern drought-tolerant maize? The curious answer to this question lies in food-chain dynamics. According to Vivek, the dramatic increase in demand for meat – particularly poultry – is the driver, with 70 percent of maize produced going to animal feed, and 70 percent of that going into the poultry sector alone.

GCP gave us a good start… the AMDROUT project laid the foundation for other CIMMYT projects”

Show and tell: posting and sharing dividends

As GCP approaches its sunset in December 2014, Vivek reports that all the AMDROUT milestones have been achieved. Good progress has been made in developing early-generation yellow drought-tolerant inbred lines. The use of MARS by the team – something of a first in the public sector – has proved to be useful. In addition, regional scientists have benefitted from broad training from experts on breeding trial evaluation and genomic selection (photo-story on continuous capacity-building). “GCP gave us a good start. We now need to expand and build on this,” says Vivek.

AMDROUT calls in on Cambridge for capacity building. AMDROUT country partners were at Cambridge University, UK, in March 2013, for training in quantitative genetics, genomic selection and association mapping. This was a second training session for the team, the first having been September 2012 in India. Pictured here, left to right – front row: Sri Sunarti, Neni Iriany, Hongmei Chen; middle row: Ian Mackay (Cambridge), Muhammad Azrai, Le Quy Kha, Artemio Salazar; back row: Roy Efendy, Alison Bentley (who helped organise, run and teach on the course, alongside Ian) and Suriphat Thaitad.AMDROUT country partners are from China’s Yunnan Academy of Agricultural Sciences (YAAS); the Indonesian Cereals Research Institute (ICERI); the Institute of Plant Breeding at the Unversity of Philppines at Los Baños (UPLB); Thailand’s Nakhon Sawan Field Crops Research Center (NSFCRC); Vietnam’s National Maize Research Institute (NMRI); and private-sector seed companies in India, such as Krishidhan Seeds.Curious on who proposed to whom for this AMDROUT–Cambridge get-together? We have the answer: a Cambridge callout announced the training, and AMDROUT answered by calling in, since course topics were directly relevant to AMDROUT’s research approach.

There is now also an International Maize Consortium for Asia (IMIC–Asia), coordinated by CIMMYT, comprising a group of 30 commercial companies (ranging from small to large; local to transnational). Through this consortium, CIMMYT is developing maize hybrids for specific environmental conditions, including drought. IMIC–Asia will channel and deploy the germplasms produced by AMDROUT and other projects, with a view to assuring impact in farmers’ fields.

Overall, Vivek’s experience with GCP has been very positive, with the funding allowing him to focus on the agreed milestones, but with adaptations along the way when need arose: Vivek says that GCP was open and flexible regarding necessary mid-course corrections that the team needed to make in their research.

But what next with GCP coming to a close? Outputs from the AMDROUT project will be further refined, tested and deployed through other projects such as Triple A, thus assuring product sustainability and delivery after GCP winds up.

As our Maize Research Initiative does not have a Product Delivery Coordinator, Vivek graciously stepped in to coordinate the maize research group at our General Research Meeting in 2013, for which we thank him yet again. Below are slides summing up the products from this research, and the status of the projects then.

For this ‘IBP story-telling season’, our next stop is very fittingly Africa, and her most populous nation, Nigeria. Travel with us!

Having already heard the Integrated Breeding Platform (IBP) story on data from Arllet (spiced with a brief detour through Asia’s sun-splashed rice paddies), and on IBP’s Breeding Management System from Mark (where we perched on a corner on his Toulouse workbench of tools and data), we next set out to get an external narrative on IBP, and specifically, one from an IBP user. Well, we got more than we had bargained for from our African safari…

Yemi Olojede

Yemi Olojede (pictured) is much more than a standard IBP user. An agronomist by training with a couple of decades-plus experience, he not only works closely with breeders and other crop scientitsts, but is also a research coordinator and data manager. As you can imagine, this made for a rich and insightful conversation, ferrying us far beyond the frontiers of Yemi’s base in Nigeria, to the rest of West Africa, further out to Africa , and as far afield as Mexico, in his travels and travails with partners. We now bring to you some of this captivating conversation…

Yemi has been working for the last 23 years (since 1991) at Nigeria’s National Root Crops Research Institute (NRCRI) at Umudike in various capacities. After heading NRCRI’s Minor Root Crops Programme for 13 years, he was last year appointed Coordinator-in-Charge of the Cassava Research Programme.

But his involvement in agriculture goes much further back than NRCRI: Yemi says he “was born into farming”. His father, to whom he credits his love for agriculture, was a cocoa farmer. “I enjoy seeing things grow. When I see a field of crops …what a view!” Yemi declares.

Yemi is also the Crop Database Manager for NRCRI’s GCP-funded projects. He spent time at GCP headquarters in Mexico in February 2012 to sharpen his skills and provide user insights to the IBP team on the cassava database, on the then nascent Integrated Breeding Fieldbook, and on the tablet that GCP was considering for electronic field data collection and management.

To meet the farmers’ growing need for improved higher-yielding and stress-tolerant varieties, plant breeders are starting to incorporate molecular-breeding techniques to speed up conventional breeding.

Flashback to 2010: GCP was then piloting and testing small handheld devices for data collection. Field staff going through a training session for these under Yemi’s watchful eye (right).

But for this to happen effectively, cassava breeders require consistent and precise means to collect and upload research and breeding data, and secure facilities to upload that data into the requisite databases and share it with their peers. Eighty percent of farmers in Africa have less than a hectare of land – that’s roughly two football fields! With so little space, they need high-value crops that consistently provide them with viable yields, particularly during drought. For this reason, an increasing number of Nigerian farmers are adopting cassava. It is not as profitable as, say, wheat, but it has the advantage of being less risky. The Nigerian government is encouraging this change and is implementing a Cassava Transformation Agenda, which will improve cassava markets and value chains locally and create a sustainable export market. All this is designed to encourage farmers to grow more cassava.

Enter GCP’s Integrated Breeding Platform (IBP), which has been working closely with NRCRI and other national breeding programmes to develop the right informatic tools and support services for the job. The International Cassava Information System (ICASS), the Integrated Breeding Fieldbook and the tablet are all part of the solution, backed up by a variety of bioinformatic tools for data management, data analysis and breeding decision support that have been developed to meet the specific needs of the users.

I enjoy working with the team. They pay attention to what we as breeders want and are determined to resolve the issues we raise”

Fastfoward to 2012: Based on feedback, a larger electronic tablet was favoured over the smaller handheld device. Yemi (centre) takes field staff through the paces in tablet use.

The database and IB Fieldbook“When I received the tablet I was excited! I had heard so much about it but only contributed ideas for its use through Skype and email,” Yemi remembers, echoing a sentiment that is frequently expressed by many partners who have been introduced to the device. “I experimented with the Integrated Breeding Fieldbook software focusing on pedigree management, trait ontology management, template design ‒ testing how easy it was to input data into the program and database.” Yemi noted a few problems with layout and data uploading and suggested a number of additional features. The IBP Team found these insights particularly useful and worked hard to implement them in time for the 2nd Scientific Conference of the Global Cassava Partnership for the 21st Century (GCP21 II), held in Kampala, Uganda, in June, 2012.

“I enjoy working with the team. They pay attention to what we as breeders want and are determined to resolve the issues we raise,” says Yemi. He believes the IB FieldBook and the tablet, on which it runs, will greatly benefit breeders all over the world, but particularly in Africa. “At the moment, our breeders and researchers have to write down their observations in a paper field book, take that book back to their computer, and enter the data into an Excel spreadsheet,” he notes. “We have to double-handle the data and this increases the possibility of mistakes, especially when we are transferring it to our computers. The IB Fieldbook will streamline this process, minimising the risk of making mistakes, as we enter our observations straight into the tablet, using specified terms and parameters, which will upload all the data to the shared central database when it’s connected to the internet.”

The whole room was wide-eyed and excited when they first saw the tablets”

Bringing the tablet to AfricaAfter his trip to Mexico, Yemi was concerned that some African breeders would be put off using the IB Fieldbook and accompanying electronic tablet because both require some experience with computers. “I found the tablet and the FieldBook quite easy to use because I’m relatively comfortable with computers,” says Yemi. “The program is very similar to MS-Excel, which many breeders are comfortable with, but I still thought it would be difficult to introduce it given that computer literacy across the continent is very uneven.”

Slim, elegant, portable and nearly invisible is this versatile tool. A junior scientist at NRCRI Umudike tries out the tablet during the 2012 training session.

At the GCP21 II meeting in Uganda, Yemi helped the IBP team run IB Fieldbook workshops for plant breeders from developing countries, with an emphasis on data quality and sharing. “The whole room was wide-eyed and excited when they first saw the tablets. They initially had trouble using them and I thought it was going to be a very difficult workshop, but by the end they all felt confident enough to use them by themselves and were sad to have to give them back!”

They … go back to their research institutes and train their colleagues, who are more likely to listen and learn from them than from someone else.”

Providing extra support, cultivating trustYemi recounts that attendees were particularly pleased when they received a step-by-step ‘how-to’ manual to help them train other breeders in their institutes, with additional support to be provided by the IBP or Yemi’s team in Nigeria. “They were worried about post-training support,” says Yemi. “We told them if they had any challenges, they could call us and we would help them. I feel this extra support is a good thing for the future of this project, as it will build confidence in the people we teach. They can then go back to their research institutes and train their colleagues, who are more likely to listen and learn from them than from someone else.”

In developing nations, it is important that we share data, because we don’t all have the capacity to carry out molecular breeding at this time, and data sharing would facilitate the dissemination of the benefits to a wider group”

Sharing data to utilise molecular breedingYemi asserts that incorporating elements of molecular breeding has helped NRCRI a great deal. With conventional breeding, it would take six to 10 years to develop a variety before release, but with integrated breeding (conventional breeding that incorporates molecular breeding elements) it is possible to develop and release new varieties in three to four years ‒ half the time. Farmers would hence be getting new varieties of cassava that will yield 20‒30 percent more than the lines they are currently using in a much shorter time.

“In developing nations, it is important that we share data, because we don’t all have the capacity to carry out molecular breeding at this time, and data sharing would facilitate the dissemination of the benefits to a wider group,” says Yemi. “I enjoy helping people with this technology because I know how much it will make their job easier.”

Today, we chit-chat with Arllet Portugal (pictured) on crop research data management. Arllet’s greatest daily challenge is convincing crop breeders and other crop researchers that their research data are just as important as their core research work. She also educates us on what she means by ‘SHARP’ data management. But first, a little background on Arllet…

Transitions, travels and toolsPlant breeding is in Arllet Portugal’s blood. Her father (now retired), one of the original field staff of the International Rice Research Institute (IRRI) at Los Baños in The Philippines, nurtured it in her from a tender age. It’s easy to picture him sharing fascinating tales daily with his family upon coming home, after a day of hard work in sun-splashed paddies where he nurtured mysterious and exotic new lines of rice which he was told may hold the solution to world hunger.

“He loved what IRRI stood for and admired the research they did,” reminisces Arllet. “I think he hoped one day he would have a son or daughter working alongside the researchers, so I guess I fulfilled that wish!” She adds “His IRRI stories still continue to this day, and I have learnt much from him which continues to give me deeper insights in my work and interactions with crop scientists.”

Having lived most of her life under the canopy of IRRI, including 12 years working as a database administrator at the Institute, she decided it was time for a change, and she spread her wings – an adventure that would take her across the oceans, pose new challenges, and plunge her deeper into agricultural research beyond IRRI’s mandate crop, rice. So, in 2009, she packed her bags and headed to Mexico, having accepted a position as a crop informatician for wheat at the International Maize and Wheat Improvement Center (CIMMYT), and then moving over to GCP the following year as Informatics Coordinator, and later on Data Management Leader of GCP’s Integrated Breeding Platform (IBP).

The Platform is a one-stop shop for crop information, informatics tools and services designed to propagate and support the application of modern approaches to crop breeding, particularly targeting developing countries.

We are trying to show breeders that their ‘system’ can be enhanced and streamlined if they enter data straight into a computer when they’re in the field and then upload them into an online database.”

Gunning for a digital data revolution: The challenge of changing mindsetsArllet’s greatest daily challenge is convincing crop breeders and other crop researchers that their research data are just as important as their core research work, and they should therefore dedicate as much time, energy and resources to managing data.

“Like everyone else, most plant breeders tend to be generally comfortable with the ‘systems’ that they and their predecessors have always used,” says Arllet. “For plant scientists, this often consists of recording results using pen and paper when they are out in the field, then coming back to their office and either filing those paper records as is, or re-entering the data into a basic Excel spreadsheet that is for their eyes only. They will then pull these data out when they want to compare them with their previous data.”

Arllet explains that this age-old system is not necessarily wrong, but it wastes valuable time, is insecure and limits the capacity of breeders to efficaciously reuse and also share their data with colleagues – a practice by which they would help each others’ work. “We are trying to show breeders that their ‘system’ can be enhanced and streamlined if they enter data straight into a computer when they’re in the field and then upload them into an online database,” she says.

Walking with giants…”

Dealing with data: maximising efficiency, security, value and sharing“These data can then be better secured and managed for their benefit and that of other researchers doing similar or related work, in essence increasing their working capacity. They would also have access to the most current analytical tools to verify their results and do their research more efficiently.”

Arllet explains that such improved systems have been in place for decades in the developed world, particularly within the private sector but not as prevalent in the developing world or public sector. This is largely attributable to the high cost of the equipment and informatics tools, and a lack of personnel with the appropriate skills to make use of the tools.

Through a collaborative effort bringing together a wide array of partners, with funding primarily from the Bill & Melinda Gates Foundation, supplemented by the European Commission and the United Kingdom’s Department for International Development, IBP is working to overcome some of these barriers. With the release of the Integrated Breeding (IB) FieldBook, the foundational informatics tool for the proposed system, Arllet believes a giant step has been made towards achieving this objective.

Breeders will be able to use it to plan their trials from start to finish”

What is the IB FieldBook?The IB FieldBook is a user-friendly computer program that facilitates the design of field trials and produces electronic field-books, field plans and labels. It collects together – in a single application – all the basic tools that a plant breeder requires for these diverse but intertwined functions.

“Breeders will be able to use it to plan their trials from start to finish,” says Arllet. “This is important as it will, for example, keep track of all the identities of plant crosses, minimising the chance that the breeder, or assisting technician, will record the data incorrectly, while emphasising the importance of accurate data for correct crop-breeding decisions.”

Live demonstration: Taking the tablet through the paces at a training workshop for research technicians in January 2012. The regional workshop for West Africa (in French and English) was hosted by L’Institut d’économie rurale (IER) at Sotuba, Mali. A similar workshop was held in Ethiopia in English for the Eastern and Southern Africa region.

She and her team have been conducting training workshops on data management for breeders at which they demonstrate the IB FieldBook and the use of handheld electronic devices (such as tablets) for data collection, which breeders can conveniently take to the field with them and directly enter the phenotyping data they would normally capture in paper field-books.

Tablets and feedback“The training has been challenging but fun,” says Arllet. “When we present the breeders with a tablet at the start of the exercise, they get really excited. It takes a while for them to learn how to use it, but once they do, they see how this technology could save them time and reduce the risk of mistakes. It’s a little sad for them and for us though when we have to take the tablets back at the end of the exercise, as demand always outstrips supply. We have howeverdistributed around 200 tablets to breeders, university academic staff, researchers and postgraduate students of plant breeding. Majority of the recipients are from Africa and Asia. And the good news is that, as a result, some of the institutes and programmes the recipients come from have gone ahead to purchase more units for themselves.”

Arllet observes that the workshops have not only allowed her team to educate breeders and build awareness, but also to receive valuable feedback on how the IB FieldBook could be improved to make it even better, and learn what other tools breeders need. “Based on this feedback, we worked on the IB FieldBook version 4, which was released in June 2013, as well as on a number phenotypic and genotypic data management tools to incorporate into both the FieldBook and the primary crop databases.”

SHARP and secure data managementPlant breeders are collaborating more often than they used to, and also drawing much more on specialised experts for each stage of the crop variety development chain. These experts are able to verify the data to make sure they are correct, do their job quickly and pass the data onto the next expert, an economical resource- and time-efficient process. However, as Arllet explains, consistent and secure data management is key to the success of these collaborations.

For Arllet, data that are properly managed are ‘SHARP’ – shareable, available,reusable and preservable. “By collecting data in a consistent format, uploading them to a secure database with easily identifiable tags, and making them available to other researchers, the data will be more accessible to partners, enable reliable analysis and conclusions, be more likely to be reused, and most importantly, save time and money. For example, breeders who share their data on the IBP database will receive support from researchers outside of their own breeding programme and enlist the help of experts and specialists they require for particular tasks,” says Arllet. “This includes access to, say, a molecular biologist in Europe or Asia for the breeder in Africa or America who may need that kind of specialist help, for example.”

Arllet and her team of four consultants are currently helping breeders from all around the world upload their historical research data into the central crop databases of the Integrated Breeding Platform, a massive task given the issues of trust, language barriers, slow internet connections, inadequate computer skills and the sheer volumes of the data. However, these are challenges that are becoming easier to handle with greater awareness and the enthusiasm that comes with that.

What next, and what difference will it make?Adoption and broad use of the FieldBook will of course also make the process easier in the future, enabling a single step uploading of phenotypic data – hence setting breeders free to get on with their work without the wastefulness of having to enter and re-check the data multiple times.

“What it all means is that we will facilitate the more rapid and efficient development of higher-yielding more stress-tolerant crops that can benefit the farmers and the people they feed,” says Arllet, “and that is the ultimate goal of a plant breeder’s work.”

PRIZE AND FUN! If you’ve survived this far, you deserve a prize, in the form of seeing Ms Portugal in party mode. To see what Arllet gets up to when she’s not crunching data, flip through this fun album